Breech mechanism for guns.



No. 6512,92l. Patented Feb. Il, |902.

` A. w. SCHWARZLBSE.

BREECH mecimmsm For: GUNS.

(Application led June 25, 1901.)

` 2 Sheets-Sheet l.

No. 692,921. Patented Feb. n, |902.'

- A. w. scHwAnzLosl-z.

BBEECH MECHANISM F0. uu-.

(Application led June 25, 1901.1

2 Sheets-Shee'i 2.

(No Model.)

-Other .UN irai) STATES PATENT Orricn.

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BREECH 1v1P CHixtust/lly For: GUNS.

Si?El'.i"'IGAJLIl0l \T forming 'part of Letters Patent N0.`692,921, dated February 11, 1902.

Application tiled June 25,1901.

To all wlw/7b it 71mg/ (zo/warm 'Be it known that I, ANDREAS WILHELM SCHWARZLOSE,engineer,a citizen of the Kingdom of Prussia, and a resident of Bahnhof# strasse 54, Suhl, 'l`huringi'a,in. the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in lreech Mechanism for Guns, oi' which the iollowing is a specification.

The present invention relates tomeans Iior actuating the breech mechanism of gunsof that kind. in which the closing ot the barrel is doneby means of a wedge. 'lhisnew m'cchanism is exceedingly simple in' its construetion, facilitates the management of the wedge, and insures a smootlrworking of the same.

It consists ofa toggle-joint of peculiar form.' The toggle-joints of known construction have their parts arranged in such a way that theyV form a straight line when the mechanism is closed, having the articulation arranged in the middle. In the new mechanism, on the contrary, the joints of the toggle are arranged in such away that they lie one beside the when the mechanism is closed and that the articulation lies at the ond.` In conse-- quence of this arrangementin the beginning of the movement for opening and closing the mechanism, as well as toward the end et same, a maximum of force is transmitted to the wedge, which is greater than the force which will be transmitted, all other conditions oeing equal, by any other mechanism of known construction. In the accompanyingr drawings, Figure l shows the breech of the gun provided with the mechanism in elevation, and Fig. L the same in rear view. Figs. 5 and -l are horizontal longitudinal sections through same on line A A of Figs. l and 2, showing the bre-eeh closed and open, respectively. 5 and 42 are details ol' the mechanism.

'lhe wedge e, sliding vin a transversal bore 'breech of tho barrel, a rod, being in the barrel of thegun, has on its upper side Serial No. 66,@01. (Nonxodeld ,a recess I), imitating the torm of a sector of a circle. Int-his recess is arranged an arm c, pivoted with one end to 'the wedge by means of a laterally-arranged pivot d. Above the opening" for thewed-ge inthe rearpart of the barrel Aof the gun another recess c, also of sector shape, is provided in' the barrel. In'thie recess e moves the short arm j' of a bent lever pivoted,`by meanso'f a bolt g,to the barrel ot the gun, the longer arm h of said lever bearing at'its end a handle i. A bolt .j con'- nects the free ends'of levers f and c, which therefore form a toggle-joint.

If the handle li in the closed position of the mechanism, Fig. 3, is moved in the direction of the arrow, the arm f rotates about the pin (j, and its end thereby describes a path forming part ot' the circle.A Aste the end of said arm is articulated part c, the free end ot which is connected to the wedge c, it is evident that the circular motion of arm fwill cause the wedge to be displaced in astraight line and will be withdrawn `from its Sea-t', thereby uncoveringtho bore of vthe barrel. ly turning the lever h in the opposite direction when the breech is open, Fig. the wedge is brought back to its original position.

A breech mechanism for guns, comprising a wedge sliding in a transversal bore'in the pivoted to said wedge and moving in a recess ot' saine,

a double-armed lever articulated to the barrel, the short arm of which moves in a. recess of the barrel,'sa'id arm being articulated to the l'ree end of said rod; substantially as shown and described.

In testimony whereof I allix my signature in presence ol` two witnesses.

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